package com.servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

//演示Session
public class Demo03Servlet extends HttpServlet {
    //这里使用doGet、doPost、service方法都可以
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //获取session，如果获取不到就创建一个新的
        HttpSession session = req.getSession();
        System.out.println("SessionId:"+session.getId());
    }
}
